Originally Posted by Chatter Box:
Good to know... yes I have been documenting. 
I have tried making him the bigger bottles and he seems to waste the formula if I do it. I cannot make him drink the whole bottle but it's not lasting as long. I think a lot of it is the busy period where they don't want to sit still...they want to play. I have to continually sit there and make him finish the bottle.... and even then he won't... but then he has a melt down an hour later which a bottle will cure.
What size nipple does he have on his bottle? I just went through this with my 6 month old dcb. He wasn't finishing a bottle but was always wanting one. I switched him to a size 2 and now he finishes his bottle every time.